Method for manufacturing eyeglasses
a manufacturing method and eyeglass technology, applied in the field of eyeglass manufacturing, can solve the problems of high eyeglass manufacturing cost, slow and laborious process, etc., and achieve the effect of quick and easy automatic manufacturing of eyeglasses
Inactive Publication Date: 2010-07-01
THETA OPTICS
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- Application Information
AI Technical Summary
Benefits of technology
"The present invention provides a new and improved method for making eyeglasses. The method involves injection molding a transparent plastic preform with lens areas and a frame in seamless arrangement, and then using a computer-controlled printing system to add functional and decorative coatings to the preform. The second method involves injection molding an elastic eyeglass frame that can be fitted around the lens holes, and then adding the same coatings. The method allows for quick and automated manufacturing of eyeglasses, and also allows for flexible and customized functions to be included, such as photochromatic, UV, and decorative functions."
Problems solved by technology
As it is known, manufacturing of eyeglasses is a slow and handwork-intensive process, due to which manufacturing costs of the eyeglasses are high.
Method used
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Embodiment Construction
[0026]FIGS. 1a and 1b show schematically eyeglasses manufactured in accordance with the method of the invention.
[0027]The preform of the eyeglasses is made of plastic by injection moulding. The preform constitutes a carrying base part of the eyeglasses that may be coated, for instance, with appropriate coatings. The preform comprises optical lens areas 1 and 2 and a frame 3 connecting them. The optical lens areas 1 and 2 are an integral part of the frame 3. Thus, mutually integrated lenses and a frame connecting them are produced in one and the same injection moulding process. The lens area 1 is optically fully finished and its optical properties are not further affected, apart from coating. The lens area 1 may be designed such that it corrects refractive errors of the eye or the like. In a second embodiment the lens area 1 is machined with methods known per se for correcting refractive errors of the eye. In the injection moulding method it is possible, but not necessary, to inject ...
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Abstract
A method for manufacturing eyeglasses. In the method a preform for the eyeglasses is injection moulded of transparent plastic, the preform comprising lens areas and a frame connecting them and arranged seamlessly thereto, and a computer-controlled printing is performed on the preform for providing one or more functional and / or decorative coatings, the printing being directed at least to the lens areas. The computer-controlled printing in also directed to the frame. Thus, the outline of a frame area is printed. In a second embodiment of the invention, there is injection moulded an eyeglass frame that forms a continuous, endless and elastic component around the lens holes. The lens holes are compressible around the lenses fitted in the lens holes. Computer-controlled printing is directed to the frame for providing one or more functional and / or decorative coatings.
Description
BACKGROUND OF THE INVENTION[0001]The invention relates to a method for manufacturing eyeglasses.[0002]The invention also relates to a method for manufacturing eyeglasses, in which method frames of the eyeglasses are injection moulded.[0003]There are known a number of methods for manufacturing eyeglasses. It should be noted that the term “eyeglasses” refers here not only to spectacles but also to protective eyewear and sunglasses.[0004]As it is known, manufacturing of eyeglasses is a slow and handwork-intensive process, due to which manufacturing costs of the eyeglasses are high.BRIEF DESCRIPTION OF THE INVENTION[0005]The object of the present invention is to provide a novel and improved method for manufacturing eyeglasses.[0006]The method of the invention is characterized by injection moulding a preform for eyeglasses of transparent plastic material, the preform comprising lens areas and a frame in seamless arrangement therewith that connects them, and by performing a computer-contr...
Claims
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IPC IPC(8): B05D5/06B29D11/00B05D3/06
CPCB29C45/0053B29C2045/0079B29D11/00B29D12/02B29L2011/00B44C1/00B44D5/00B29D11/00961B29D11/00865B29D11/00009B29C45/00G02C1/02G02C7/021
Inventor NIEMINEN, OLAVI
Owner THETA OPTICS